Improvement in padlocks



' w. H. TAYLOR.

PADLOCK.

N. 192,847. rammed Ju1y1o,1s77l.

my 1f WTTN'ESS ES MPEIERS. PHOTO LTHOGRAPH UNITED STATES PATENT EFTCE.

f WARREN H. TAYLOR, OE sTAMEORD, CONNECTICUT, AssIGNOR TO THE YALE LOCKMANUFACTURING COMPANY, OF sAME PLACE.

Vllvnuovrnvnaivi- |N PADLocKs.

Specification forming part of Letters Patent No. 192,847, dated July l0,1877; application iled May 26, 1877.

To all whom it may concern:

Be it known that I, WARREN H. TAYLOR, of Stamford, in the county ofFairfield and State of Connecticut, have invented an Improved Padlock,of which the following is a specification, that will enable personsskilled in the art to which my invention relates to make and use thesame, reference being had to the accompanying drawings.

My invention relates to a padlock composed of an exterior metallic shellor case, to which the hasp or shackle is hinged, and an interiormetallic block, which packs the shell, and carries and protects theworkin g parts ofthe lock.

In the drawings, Figure l represents a side view of my lock complete andlocked. Fig. 2 is a longitudinal vertical section, showing the internalblock and working mechanism in the locked position. Fig. 3 is a planview of the bottom of the lock and key-hole. Fig. 4 is a plan view ofthe top ofthe block removed from the shell, showing the bolt and itsactuating spring in the locked position. Fig. 5 shows a side view of'one ofthe tumblers with its spring. Figs. 6 and 7 are views Vof the boltdetached. Fig. 8 is a perspective View of a key adapted to work my lock.Figs. 9 and l0 are, respectively, plan and side views of the block withall the working parts removed.

A indicates the exterior case of the lock with the shackle or hasp Bhinged to it. (l indicates the interior block, which is constructed toslide into the base of the shell and pack it, and be4 there secured, inorder to prevent the shell -from being stove or indented, to derange theworking parts of the lock. The block has a transverse slot, `b, in whichthe tumblers are pivoted, and is recessed on its top and provided withways in which the bolt slides, as shown in Figs. 9 and 10. D indicatesthe sliding bolt, actuated by the springl d, and carrying the fence E,which engages with theends ofthe pivoted tumblers F when in the lockedposition, and enters their -gatings when they are adjusted and the boltis retracted by the key. The tumblers are in a plane substantiallyparallel to that of the sliding bolt. G indicates' the plunger, soconstructed and applied as to spring up when the bolt is retracted,swing out the shackle, and close its aperture in the case to preventdirt from entering the lock,

and at the same time to prevent the bolt from f springs, normally bearagainst the inner walls of the shell, and when in this position thegatings are so arranged as not to be in coincidence, and the bolt isthen locked. The key is bitted alike on each side, so that, no matterwhich way it may be inserted, when turned one-fourth of arevolution itwill spread the tumblers until their gatings coincide, when a furtherturning of it will cause its side to strike the talon t in thebolt-aperture and retract the bolt, the fence freely entering thecoincident gatings.

l prefer to use three tumblers, but more or a less number might beemployed. The keyhole is tormed by boring a hole in the block from thetop of a diameter corresponding with the width of the key to be used,and then boring a hole in the same axial line and of larger diameterfrom the bottom of the block a suitable distance to leave a thinpartition of metal between the two holes. This partition is then boredwith a hole of still smaller diameter, to correspond with the last bitson the key, leaving a ledge, which is then slotted on Opposite sides tocorrespond with the greatest width of the key to admit its insertion. Adisk, Z, fitting the largest hole in the lower side of the block, andslotted to correspond with the width ot' the key, is then inserted, anda bushing, W, is placed in the hole overit and spun or burnishedsecurely into place, the inside diameter of the bushing corresponding tothe width of the key. When the disk is turned so that its slot coincideswith the two opposite slots v in the ledge the key can be inserted andthe disk will then turn with it.

ln order to render the lock as light as possible, the sides of the blockmay be recessed, as at t in Fig. 10in a part of it not immediatelycontiguous tothe Working parts, ,and where indentations of theshellwouldnot he destructive or particularly injurious.

blers, and the latter, by the action of their springs, will adjustthemselves behind the fence and bear against it, holding the boltlocked. rIhis construction of a padlock renders it a practically solidbleek of metal, incapable y of being crushed vby any blow or' weight towhich, in practice, it is liable to be exposed, and renders its workingparts substantially invulnerable.

Having thus described 'the construction and operation of my invention,what-I claim, and desire to secure by 'Letters Patent, is-

1. The combination of an exterior shell having` the hasp hinged toitfanvd-,an interior solid packing -bloek .carrying and protectingthelocking' mechanism, and preventing injurious .crushing or indentation ofthe shell, substantially as described.

2: The Combination .of the packing-block,

Ithe )bolt provided with the central aperture and talon, landthetumblers intheblock-slot, substantially as described, whereby a keybitted alike y.Oil each side may be employed to pass between thetumblers and through the bolt, and work the lock.

3. The combination of the bushing, the double-slotted ledge, and t'heslotted disk, substantially as described.'

ln testimony whereof I have hereunto subscribed my name.

WARREN' H. TAYLOR.

Witnesses E. D. OGDEN, Jr., GRAS. E. VAIL.

